Refactor reset organisation test

This changes the test from a feature test to a controller test, mostly
to fix what is seemingly a bug where we can't do a feature test is the
response data is streamed.

Long term, it might make sense for us to have more controller tests as
they're lightweight compared to feature tests.

Author: thomasleese

spec/controllers/dev/reset_organisation_controller_spec.rb

@@ -0,0 +1,76 @@
+# frozen_string_literal: true
+
+describe Dev::ResetOrganisationController do
+  before { Flipper.enable(:dev_tools) }
+  after { Flipper.disable(:dev_tools) }
+
+  describe "GET" do
+    let(:programmes) { [create(:programme, :hpv_all_vaccines)] }
+
+    let(:organisation) { create(:organisation, ods_code: "R1L", programmes:) }
+
+    let(:cohort_import) do
+      create(
+        :cohort_import,
+        csv: fixture_file_upload("spec/fixtures/cohort_import/valid.csv"),
+        organisation:
+      )
+    end
+
+    let(:immunisation_import) do
+      create(
+        :immunisation_import,
+        csv:
+          fixture_file_upload(
+            "spec/fixtures/immunisation_import/valid_hpv.csv"
+          ),
+        organisation:
+      )
+    end
+
+    before do
+      programmes.each do |programme|
+        programme.vaccines.each do |vaccine|
+          create_list(:batch, 4, organisation:, vaccine:)
+        end
+      end
+
+      create(:school, urn: "123456", organisation:) # to match cohort_import/valid.csv
+      create(:school, urn: "110158", organisation:) # to match valid_hpv.csv
+
+      cohort_import.process!
+      immunisation_import.process!
+
+      Patient.find_each do |patient|
+        create(:notify_log_entry, :email, patient:, consent_form: nil)
+
+        consent_form = create(:consent_form, session: Session.first)
+        parent =
+          patient.parents.first || create(:parent_relationship, patient:).parent
+        create(
+          :consent,
+          :given,
+          patient:,
+          parent:,
+          consent_form:,
+          programme: programmes.first
+        )
+      end
+
+      create(:school_move, :to_school, patient: Patient.first)
+    end
+
+    it "deletes associated data" do
+      expect { get :call, params: { organisation_ods_code: "r1l" } }.to(
+        change(CohortImport, :count)
+          .by(-1)
+          .and(change(ImmunisationImport, :count).by(-1))
+          .and(change(NotifyLogEntry, :count).by(-3))
+          .and(change(Parent, :count).by(-4))
+          .and(change(Patient, :count).by(-3))
+          .and(change(PatientSession, :count).by(-3))
+          .and(change(VaccinationRecord, :count).by(-11))
+      )
+    end
+  end
+end

spec/features/dev_reset_organisation_spec.rb

@@ -211,6 +211,7 @@
   config.include ActiveJob::TestHelper, type: :feature
   config.include ActiveSupport::Testing::TimeHelpers
   config.include Capybara::RSpecMatchers, type: :component
+  config.include Devise::Test::ControllerHelpers, type: :controller
   config.include Devise::Test::IntegrationHelpers, type: :feature
   config.include CIS2AuthHelper, type: :feature
   config.include PDSHelper, type: :feature